If you have read the other thread, you will realize you can "lock" a desynth skill for 4 rounds by doing a successful desynth (do a really easy/cheap one).
Inconvenient, but not worth quitting over.

E.g.
Desynth lock Skill 1 > Desynth lock Skill 2 > Skill 3 Up > Skill 3 Up > (Repeat)